8ta bad service

I took a contract from 8ta for my gf about 4 weeks ago, only to find out that the phone wasn't switching off and back on continously. I then returned the phone back to the store before 7 days and as we all are told when signing new contracts if the phone is faulty and reported within seven days it would be sent for testing and if genuinely faulty we would get a new phone.<br> I keep phoning the consultant at the store and at 1st I was told we need to wait for a report.then get told that the report cane back and one part said the phone is faulty and then another part of the report said it wasn't. <br> <br> This is very unfair as I have paid for the phone and haven't even had it for 5 days in my hand.<br> <br> Can someone please respond to this complaint as I want to cancel my contract now